ML20148E401
| ML20148E401 | |
| Person / Time | |
|---|---|
| Issue date: | 12/29/1994 |
| From: | Matthews D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Verrelli D NRC (Affiliation Not Assigned) |
| Shared Package | |
| ML20148E385 | List: |
| References | |
| FOIA-96-485 NUDOCS 9706030087 | |
| Download: ML20148E401 (2) | |
Text
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e From: David M. Vgerelli (DMV)f fg !
To: DBM , Alf/Z.. u A A 1H hee 42r Date: Thursday, December 29, 1994 7:36 am )
Subj ect s- Conference Call # as l l
I have the same conference line for both this am & im l 1
10:00 Crystal Performance Review 1 h 2:00 StLucie Enforcement Panel l
.J CC: BXU, LJW2, LXR1, JAN2 l
i 9706030087 970530 PDR FOIA PDR l BINDER 96-485 s ee -
i Information in in -
In accordance Wit %' t s deleted ;9 Act, exemptions Folg. reedom ofInformation (C&D]
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I
&6 h & ed YAfo f4 i LISTIC EVALUATION OF ST. LUCIE LER 94-006-01
! 'he event of interest is a Loss of Coolant Accident (LOCA) coincident ltithaLossof"3ffsitePower(LOOP)andfailureofoneEmergencyDiesel
, ten m tor to Start. ine period of exposure is assumed to be one year.
l- roa the St. Lucie IPE the following initiating event frequencies and eliability data were obtained:
f(LOCA)= 1.42E-03/yr._(small-small LOCA frequency) a.
f(LOSP)= 1.50E-01/yr (loss of grid frequency) p(EDG-FTS)= 8.26E-03/ demand (probability that EDG fails to start) ,
(1.42E-@
- 1.5E-01
- 8.26E-03)/365 - 4.82E-09/yr (i.e. the frequency of LOCA coincident with LOSP and EDG HS is app.cximately 5.0E-09/yr using St. Lucie plant-specific data)
Ising g:neric data the following result is obtained:
f(LOCA)= 2.66E-02/yr f(LOSP)= 3.39E-02/yr p(EDG-FTS)= 2.57E-02/ demand (2.66E 02
- 3.39E-02
- 2.57E-02)/365 ,6.35E-08/yr e e ic estimates yield a result of appro ately r
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